Origin of the Luping Pb deposit in the Beiya area, Yunnan Province, SW China: Constraints from geology, isotope geochemistry and geochronology

Zhou, Jia‐Xi; Dou, Song; Huang, Zhilong; Cui, Yinliang; Ye, Lin; Li, Bo; Gan, Ting; Sun, Hongyu

doi:10.1016/j.oregeorev.2015.07.015

Cited by 20 publications

(2 citation statements)

References 51 publications

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“…12). Because these sulphides usually contain very low concentrations of U and Th, and almost no radiogenic Pb was generated after mineral formation, these Pb isotopic compositions likely reflect the initial Pb isotopic compositions of the ore-forming hydrothermal fluid, thus tracking its source (Zhou et al 2016, 2018; Liu et al . 2020).…”

Section: Discussionmentioning

confidence: 99%

Fluid inclusions and C–H–O–S–Pb isotope systematics of the Senj Mo–Cu deposit, Alborz magmatic belt, northern Iran: implications for fluid evolution and regional mineralization

Fazel

Mehrabi²,

Zamanian³

et al. 2022

Geol. Mag.

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The Middle Eocene Senj Mo–Cu deposit (1.3 Mt at 1.5 wt % Cu and 0.2 wt % Mo) is located in the central Alborz magmatic belt, northern Iran. Mineralization is characterized by multistage veins, which are hosted in volcanic and volcano-sedimentary strata of the Karaj Formation (c. 41–45 Ma), genetically associated with the Senj Mafic Sill (c. 40 Ma). Four generations of veins are documented based on mineral assemblages and cross-cutting relationships, sequentially: quartz–biotite–chalcopyrite (QBC veins), quartz–molybdenum (QM veins), quartz–pyrite (QP veins) and late calcite (LC veins). Three types of fluid inclusions (FIs) are present in multistage veins: liquid-rich two-phase (L-type), vapour-rich two-phase (V-type) and solid-bearing multi-phase (S-type) inclusions. FIs in the QBC and QM veins are predominantly V-type and S-type, together with minor L-type, whereas the QP and LC vein minerals only contain L-type fluid inclusions. The homogenization temperatures of FIs from QBC to LC veins vary from 320 to 425 °C, 308 to 390 °C, 214 to 288 °C and 145 to 243 °C, and their salinities range from 5.3 to 49.0, 6.2 to 39.7, 5.7 to 13.0, and 2.1 to 7.2 wt % NaCl equiv., respectively. The H–O–C isotope compositions favour a dominantly magmatic origin for the hydrothermal fluids, which were gradually diluted by meteoric waters. The S–Pb isotope data of sulphide minerals indicate that the sulphur and metals were sourced from a deep-seated magmatic reservoir. The Senj Mafic Sill and associated Mo–Cu mineralization was developed in a back-arc extension regime, which faults and crustal fracture systems served as conduits for hydrothermal fluid circulation and Mo-rich veining.

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Section: Discussionmentioning

confidence: 99%

Fluid inclusions and C–H–O–S–Pb isotope systematics of the Senj Mo–Cu deposit, Alborz magmatic belt, northern Iran: implications for fluid evolution and regional mineralization

Fazel

Mehrabi²,

Zamanian³

et al. 2022

Geol. Mag.

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“…However, it would provide a more accurate assessment if we could trace the sources of the ore‐forming materials by correcting Pb isotopes through a local rather than global model, due to the fact that Pb isotopes change significantly from place to place. Some studies have provided effective thoughts and methods for the analysis of Pb isotopes (Huston et al, ; Zhou et al, ). To construct a local model for the Antuoling Mo deposit, the Pb isotope compositions of the background material, such as basement and sedimentary rocks, should be collected and corrected for age.…”

Section: Discussionmentioning

confidence: 99%

Fluid Inclusions and Hydrogen, Oxygen, and Lead Isotopes of the Antuoling Molybdenum Deposit, Northern Taihang Mountains, China

Zhe

Song

et al. 2017

Resource Geology

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The Antuoling Mo deposit is a major porphyry-type deposit in the polymetallic metallogenic belt of the northern Taihang Mountains, China. The processes of mineralization in this deposit can be divided into three stages: an early quartz-pyrite stage, a middle quartz-polymetallic sulfide stage, and a late quartz-carbonate stage. Four types of primary fluid inclusions are found in the deposit: two-phase aqueous inclusions, daughter-mineral-bearing multiphase inclusions, CO 2 -H 2 O inclusions, and pure CO 2 inclusions. From the early to the late ore-forming stages, the homogenization temperatures of the fluid inclusions are 300 to >500°C, 270-425°C, and 195-330°C, respectively, with salinities of up to 50.2 wt%, 5.3-47.3 wt%, and 2.2-10.4 wt% NaCl equivalent, revealing that the ore-forming fluids changed from high temperature and high salinity to lower temperature and lower salinity. Moreover, based on the laser Raman spectra, the compositions of the fluid inclusions evolved from the NaCl-CO 2 -H 2 O to the NaCl-H 2 O system. The δ 18 O H2O and δD values of quartz in the deposit range from +3.9‰ to +7.0‰ and À117.5‰ to À134.2‰, respectively, reflecting the δD of local meteoric water after oxygen isotopic exchange with host rocks. The Pb isotope values of the sulfides ( 208 Pb/ 204 Pb, 207 Pb/ 204 Pb, 206 Pb/ 204 Pb,) indicate that the ore-forming materials originated from a mixed upper mantle-lower crust source.

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The genetic relationship between Habo alkaline intrusion and its surrounding deposits, Yunnan Province, China: geological and S–Pb isotopic evidences

Meng

Zhang

et al. 2016

Acta Geochim

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Origin of the Luping Pb deposit in the Beiya area, Yunnan Province, SW China: Constraints from geology, isotope geochemistry and geochronology

Cited by 20 publications

References 51 publications

Fluid inclusions and C–H–O–S–Pb isotope systematics of the Senj Mo–Cu deposit, Alborz magmatic belt, northern Iran: implications for fluid evolution and regional mineralization

Fluid inclusions and C–H–O–S–Pb isotope systematics of the Senj Mo–Cu deposit, Alborz magmatic belt, northern Iran: implications for fluid evolution and regional mineralization

Fluid Inclusions and Hydrogen, Oxygen, and Lead Isotopes of the Antuoling Molybdenum Deposit, Northern Taihang Mountains, China

The genetic relationship between Habo alkaline intrusion and its surrounding deposits, Yunnan Province, China: geological and S–Pb isotopic evidences

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